Propeller for boats



(No Moel.) 2 Sheets8heet 1. J. W. M. D. MOORE. PROPELLER FOR BOATS.

No. 583,762. Patented June 1, 1897.

2 Sheets-Sheet 2.

(No Model.)

J. W. M. D. MOORE. P-ROPBLLER FOR BOATS. No. 583,762. Patented June1,1897.

UNITED STATES ATENT QFFICE.

JOHN \VESLEY MACK DONEL MOORE, OF MOSS, TENNESSEE.

PROPELLER FOR BOATS.

SPECIFICATIONforming part of Letters Patent No. 583,762, dated June 1,1897.

Application filed December 19, 1896. Serial No. 616,265. (No model.)

To all whom it may concern:

Be it known that 1, JOHN WESLEY MACK DoNELMoonE, a citizen of the UnitedStates, residing at Moss, in the county of Clay and State of Tennessee,have invented certain new and useful Improvements in Propellers forBoats; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in mechanism for propelling boatsand similar vessels; and the object is to provide a simple, durable, andefficient de vice for this purpose.

To this end the invention consists in the construction, combination, andarrangement of the same, as Will be hereinafter more fully described,and particularly pointed out in the claims.

In the accompanying drawings the same figures of reference indicate thesame parts of the invention.

Figure 1 is a perspective view of my improved propelling mechanism forboats. Fig. 2 is an enlarged side elevation of the ratchetdrum, and Fig.3 is a vertical longitudinal section of the same.

1 represents the main driving-shaft,'suitably mounted in the usualbearings in the boat. This shaft is provided with a sprocketwheel 2,from which a sprocket-chain 3 runs to a smaller sprocketwheel 4 on acountershaft 5.

6 represents a balance or fly wheel also fixed on the counter-shaft 5,and 7 is a sprocketwheel also rigidly fixed on the said shaft 5. Asprocket-chain 8 connects said wheel 7 with a sprocket-wheel 9 on atransverse shaft 10, mounted in hearings in the sides of the boat orvessel, the outer ends of which project a sufficient distance outsideof' the hull to receive the sprocket-pulleys 12 and 13.

14 and 15 are similar sprocket-pulleys loosely mounted on short shafts16 17, secured on the outside of the hull and in the same horizontalplane as the shaft 10.

1S and 19 represent endless sprocket-chain belts connecting thesprocket-pulleys 12 and 14 011 the one side and the sprocket-pulleysstrap, one end of which is suitably securedto said drum, and its otherend, after passing around the drum, is secured to a foot-lever 26,

fulcrumed in a bracket 27, fixed to the frame work in the bottom of theboat. A second smaller strap 28 has one end 29 fastened to the drum, andit then passes around said drum in the opposite direction to the strap25,

its lower end 30 being secured to the upper end of a spiral spring 31,the lower end of which is fixed to an eyebolt 32, secured to theframework in the bottom of the boat.

33 33 represent integral brackets on the inside of the drum 2-4, andthese are each formed with transverse circular recesses 34, in each ofwhich is pivoted the correspondingly-shaped hub 35 of a pawl 36, thefree end of which is adapted to engage the star-shaped teeth 23 of theratchet-wheels, being held in contact therewith by the fiat springs 37.

It will be seen by reference to the drawings that two completefoot-lever systems are employed, one on each side of the maindrivingwheel 2, and when alternately operated by the right and left foota continuous rotary motion is imparted to the endless sprocket-chainbelts 18 and 19 in the direction shown by the represents a leverfulcrumed on a rod 41 in the frame and provided with a frictionbrake-shoe 42, which bears against the flywheel, and 38 is a handle-barconnected to the brake-lever 40 by a rod 43, its hand-grip 39 beingwithin convenient reach of the opersecure by Letters Patent of theUnited States,

1. A propeller for boats, comprising the main driving-shaft, thesprocket-Wheel mounted thereon, the counter-shaft; the

sprocket-wheel and balance-wheel mounted thereon, the sprocket-chainconnecting said sprocket-Wheels, the transverse shaft provided with asprocket-Wheel, the chain connecting said last-mentionedsprocket-wheels, said transverse shaft having the sprocketpulleys 12 and13 mounted on its outer ends,

in combination with the loose sprocket-pulleys 14 and 15 and the endlesssprocket-chain belts 18 and 19, provided with the paddles 20,substantially as and for the purpose set forth.

2. A propeller for boats, comprising the main driving-shaft, thesprocket and ratchet wheels fixed thereon, and having the drums providedwith pivoted pawls, and means for intermittently operating said drums,in combination With the counter-shaft and the transverse shaft inoperative connection with the said main shaft, and the sprocket-Wheelson said transverse shaft, which wheels are in operative connection, bymeans of sprocketchains,with loose sprocket-wheels,said chains beingprovided at suitable intervals with paddle-blades, substantially as andfor the purpose set forth.

In testimony whereof I hereunto affix my signature in presence of twoWitnesses.

JOHN WESLEY MACK DONEL MOORE. Vitnesses:

\V. L. BROWN, D. \V. CULLoM.

